Patent GB-189827385-A (GB)
Title: Improvements in or connected with Sheep Shearing Machines.
Inventor: BECKER EDWARD
Filed: 1898-12-28
Granted: 1899-02-11
Abstract: 27,385. Becker, E. Dec. 28. H o r s e clippers and the like.- Relates to sheep clippers and mechanism, including a flexible shaft, for driving them. Fig. 5 shows a plan of the lower part C of the casing with the cutters A, B and the actuating- lever D, and Figs 6 and 7 show respectively the mechanism below and above the upper part E of the casing. The two parts C, E are held together by a bolt C<2>, Fig. 5, and a nut. The cutters A, B have sharp edges on both sides of their teeth, so that they cut like scissors. The cutter A is held down in its place by a spring plate. The cutter B fits on to pins on the lever D, which is pivoted at C' and moves the cutter B the space of one tooth in each direction. The lever is actuated by the hinged nose L<1> of the lever L pivoted on the pin K fixed to the part E. The lever L is slotted at L' for a crankpin on a bevelwheel actuated by a second bevelwheel on the end of a spindle which turns in the bearing R, Fig. 18, and is connected to a flexible shaft. The tension is adjusted by turning the nut F<2>, Fig. 7, which draws up the bolt F<10>, Fig. 6, pivoted to the piece F, which rocks in bearings F<8>, F<9> and carries a pivoted cross-piece F<3> bearing on the cutter B. The nut F<2> is locked by a spring piece F<1> lying in a slot in the bolt. The flexible shaft above mentioned consists of rigid and of flexible sections. The rigid sections consist of a metal tube enclosing a rod, and the flexible sections consist of links formed alternately of tubes S, Fig. 16, and rods T pivoted together by pins U, U at right-angles to one another.. The end rod V is lengthened, and carries a feather V<1> for a longitudinal slot in a tube hooked to the rod of the rigid section. The flexible section is enclosed in a wire coil J', Fig. 18, encased in a leather tube J. One end of the coil is gripped between the screwed sleeves W<3>, W<4>, and the other end is fixed by a screw to the sleeve Z. The leather casing is gripped on the sleeves W<4>, Z by nuts W<6>, Z<1> respectively. The handle H has a swivelling connection with the sleeves W<3>, W<4> by means of an annular projection H<1> which fits between them. A universal joint is arranged at X, X'. Fig. 20 shows the mechanism for driving the flexible shaft S, T. The rod T is pivoted to the pin t<1> passing through the sleeve of the bevel-wheel t and carrying antifriction rollers t<2>. A universal joint is made' at a. The bevel-wheel t engages with the wheel l fixed to the sleeve l<1> provided with teeth l<2>, which may be put into engagement with teeth k<2> on the clutch k sliding without turning on the constantly-rotating spindle h. The clutch is operated by a lever passing through the sleeve of the bracket p. The spindle h is pivoted to the piece e provided with a nut g which draws the piece e and a washer together so as to grip the flange e<4> of the driving-pulley b. A projection on the piece e rides over a spring projection on the flange e<4> if great strain is thrown on the clippers, so that the pulley b turns without driving the clippers. The nut is locked by a spring catch f<2> engaging with notches on the nut.